Automatic pressing equipment

Abstract

The present invention discloses an automatic press-fitting device, including a bearing fixture for receiving a compression shell, a fixture for clamping a PCRV valve, a main driving mechanism, a detection mechanism and a PIN needle removal mechanism. The fixture is arranged above the bearing fixture and can be driven by the main driving mechanism to move downward toward the bearing fixture to press the PCRV valve onto the compression shell; the detection mechanism has a plurality of detection components, which are distributed around the fixture and correspond to a plurality of claws of the PCRV valve one by one. When the PCRV valve is pressed onto the compression shell, the plurality of detection components can also be retracted to each other to detect whether the plurality of claws of the PCRV valve are installed in place; the PIN needle removal mechanism has a clamping component that can clamp the PIN needle. When the detection mechanism completes the detection work, the clamping component can move back to the bearing fixture to separate the PIN needle from the valve body. The structure of the automatic press-fitting device is novel and reasonable, and has a very excellent level of intelligent control, convenience, precision and stability.

Description

Technical Field

[0001] The invention relates to the technical field of assembly equipment, and in particular provides an automatic press-fitting equipment. Background Art

[0002] Automatic press-fitting equipment refers to mechanical equipment that combines several parts of a product by pressing together to obtain a finished product (semi-finished product) that meets the predetermined processing requirements. Because automatic press-fitting equipment can complete assembly actions that operators cannot complete, automatic press-fitting equipment is becoming more and more popular in the field of mechanical manufacturing.

[0003] In the automotive parts industry, there is a component product that needs to be press-fitted together with a compression shell and a PCRV valve. However, when the compression shell and the PCRV valve are press-fitted using the existing automatic press-fitting equipment, the press-fitting is often not in place. In particular, the existing press-fitting equipment does not have a detection mechanism that fully meets the requirements of the compression shell and PCRV valve press-fitting, so that the processing quality of the product cannot be guaranteed.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to overcome the above-mentioned defects, the present invention provides an automatic pressing device, which has a novel and reasonable structure and has very excellent levels of intelligent, convenient, precise and stable control.

[0006] The technical solution adopted by the present invention to solve its technical problems is: an automatic press-fitting device, which is used to assemble a compression shell and a PCRV valve together, wherein the compression shell has a shell body with a central through hole and a connecting shaft integrally connected to one side of the shell body, and the PCRV valve has a valve body and a PIN needle connected to the valve body, and a plurality of claws are arranged in a circle on the side wall of the valve body; the automatic press-fitting device includes a bearing fixture for receiving the compression shell, a fixture for clamping the PCRV valve, a main driving mechanism, a detection mechanism and a PIN needle removal mechanism, wherein the fixture is arranged above the bearing fixture, and the fixture can also be driven by the main driving mechanism to move downward toward the bearing fixture to realize the press-fitting of the PCRV valve onto the compression shell;

[0007] The detection mechanism has a plurality of detection components, which are distributed around the fixture and correspond to the plurality of claws of the PCRV valve in a one-to-one relationship. When the PCRV valve is pressed onto the compression shell, the plurality of detection components can also be retracted, that is, the plurality of detection components can all move toward the side wall of the valve body of the PCRV valve, so as to detect whether the plurality of claws of the PCRV valve are installed in place.

[0008] The PIN needle removal mechanism has a clamping assembly capable of clamping the PIN needle. When the detection mechanism completes the detection work, the clamping assembly can move away from the supporting fixture to separate the PIN needle from the valve body.

[0009] As a further improvement of the present invention, the automatic press-fitting equipment further comprises a horizontal working platform and a mounting frame vertically and positionally mounted on a side surface of the horizontal working platform;

[0010] The bearing fixture is installed on the upper side of the horizontal working platform, the main driving mechanism is installed on the mounting frame, and the clamp, the detection mechanism and the PIN removal mechanism are respectively connected to the end execution component of the main driving mechanism.

[0011] As a further improvement of the present invention, the supporting fixture includes a fixed seat, a supporting assembly and two groups of positioning units, wherein the fixed seat is detachably locked and installed on the upper side of the horizontal working platform, and one side of the fixed seat is also an inclined surface; the supporting assembly has a base plate, a supporting platform for placing the shell body and a U-shaped clamping block for placing the connecting shaft, the base plate is detachably locked and installed on the inclined surface, the supporting platform and the U-shaped clamping block are spaced and fixedly arranged on a side surface of the base plate facing away from the fixed seat; each group of the positioning units has a rotating cylinder positioned and installed on the fixed seat and an L-shaped clamping block movably installed on one side of the base plate, the two L-shaped clamping blocks are also relatively arranged on the sides of the supporting platform, and one end of the two L-shaped clamping blocks is also respectively corresponding to the piston rods of the two rotating cylinders for positioning connection, that is, the two L-shaped clamping blocks can be driven by the two rotating cylinders to press against the shell body placed on the supporting platform.

[0012] As a further improvement of the present invention, the bearing platform has a bearing seat that matches the inner cavity of the shell body and is fixedly arranged on one side of the substrate, and a guide column that is movably inserted into the central through hole of the shell body and is fixedly arranged on one side of the bearing seat;

[0013] In addition, a proximity switch for sensing the pressure shell is installed on one side of the base plate, and two handles arranged opposite to each other are fixedly provided on one side of the base plate.

[0014] As a further improvement of the present invention, the clamp includes a clamp body and a pull pin, the clamp body has a receiving cavity for receiving the valve body, and the receiving cavity is also opened on the upper outer wall of the clamp body to form an opening for the PIN needle to extend out, the pull pin is elastically mounted on the clamp body, and at the same time, one end of the pull pin is also movably extended in the receiving cavity, so that when the pull pin is pulled out and released in sequence, the pull pin can clamp the valve body and position it in the receiving cavity;

[0015] In addition, the structure that realizes that the clamp can also be driven by the main driving mechanism to press down and move toward the supporting fixture is: the main driving mechanism includes a servo motor, a screw assembly and a socket, wherein the servo motor is positioned and installed on the top side of the mounting frame, the screw assembly has a screw extending vertically and movably installed on a vertical side of the mounting frame, and a set of nut sleeves arranged outside the screw and threadedly connected to the screw, and the upper shaft end of the screw is also positioned and connected to the power output shaft of the servo motor through a coupling; the socket seat is slidably installed on a vertical side of the mounting frame, and the socket seat is also positioned and connected to the nut sleeve, in addition, a mounting plate seat is also positioned and connected on the side of the socket seat facing away from the mounting frame, the mounting plate seat is the end execution component of the main driving mechanism, a vertical connecting column is positioned and connected on the lower side of the mounting plate seat, and the clamp body is positioned and installed on the bottom end of the vertical connecting column.

[0016] As a further improvement of the present invention, a slide rail extending vertically is positioned and laid on one side of the mounting frame, and the receiving seat is slidably mounted on the slide rail via a slider;

[0017] In addition, a displacement sensor for sensing displacement information of the mounting plate seat is positioned on one vertical side of the mounting frame, and a pressure sensor is positioned on the upper side of the mounting plate seat.

[0018] As a further improvement of the present invention, the mounting plate seat has a mounting plate which is placed horizontally and positioned and connected to one side of the receiving seat, and a plurality of mounting blocks which are arranged in a ring at the periphery of the lower side of the mounting plate, and the plurality of mounting blocks are in a one-to-one correspondence with the plurality of claws of the PCRV valve;

[0019] The upper end of the vertical connection column is positioned and connected to the middle position of the lower side of the mounting plate, and the pressure sensor is positioned and arranged on the upper side of the mounting plate;

[0020] Each of the detection components has a vertically arranged detection connecting rod, and the upper ends of the multiple detection connecting rods are respectively hinged on the multiple mounting blocks, and the multiple detection connecting rods can also be retracted with each other so that the lower ends of the multiple detection connecting rods can move toward the side wall of the valve body of the PCRV valve, thereby detecting whether the multiple claws of the PCRV valve are installed in place.

[0021] As a further improvement of the present invention, each of the detection connecting rods has a connecting rod body in the shape of a vertical rod and a detection contact foot, wherein the upper end of the connecting rod body is hinged to the mounting block, and the outer wall of the connecting rod body facing away from the vertical connecting column is also concave to form an inclined pushed portion, and the detection contact foot is fixedly connected to the bottom end of the connecting rod body;

[0022] In addition, the structure for realizing that the multiple detection connecting rods can be retracted to each other is: the detection mechanism also includes a pushing component, the pushing component has a driving cylinder, a sliding sleeve and a plurality of rollers, wherein the driving cylinder is positioned and installed on the upper side surface of the mounting plate, and the piston rod of the driving cylinder points downward, the sliding sleeve is movably sleeved outside the vertical connecting column, and the upper side of the sliding sleeve is also positioned and connected with the piston rod of the driving cylinder, in addition, a plurality of supports are also arranged in a circle on the outer side wall of the sliding sleeve, and the multiple rollers are respectively and correspondingly installed on the multiple supports, and at the same time, the multiple rollers are also respectively and correspondingly slidably abutted against the multiple pushed parts; when the driving cylinder drives the sliding sleeve and the multiple rollers to move downward, the multiple rollers can push the multiple detection connecting rods to retract to each other, conversely, when the driving cylinder drives the sliding sleeve and the multiple rollers to move upward, the multiple detection connecting rods can open and reset.

[0023] As a further improvement of the present invention, each of the connecting rod bodies is connected to the outer side wall of the sliding sleeve via a tension spring;

[0024] In addition, a photoelectric detection switch for sensing the displacement information of the detection connecting rod is also positioned and installed on each of the mounting blocks.

[0025] As a further improvement of the present invention, the clamping assembly comprises a clamping cylinder positioned and mounted on the clamp body and a clamping claw positioned and connected to the piston rod of the clamping cylinder, and the clamping claw can clamp the PIN needle under the drive of the clamping cylinder;

[0026] In addition, the PIN needle removal mechanism also has a waste material recovery container which is arranged on the horizontal working platform and is used to recover the PIN needles.

[0027] The beneficial effects of the present invention are as follows: ① Compared with the prior art, the automatic press-fitting equipment combines "automatic mechanical press-fitting technology", "mechanical detection technology" and "electronic detection technology", which not only greatly improves the intelligent, convenient, precise and stable control level of the press-fitting equipment, but also realizes the precise and reliable press-fitting of the compression shell and the PCRV valve together, thus ensuring the product quality. ② The automatic press-fitting equipment saves both time and manpower in actual production, and can be widely promoted in labor-intensive enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the main structure of the automatic press-fitting equipment of the present invention;

[0029] Figure 2 It is a left-side structural schematic diagram of the automatic press-fitting equipment of the present invention;

[0030] Figure 3 It is a right side structural schematic diagram of the automatic press-fitting equipment of the present invention;

[0031] Figure 4 This is a schematic diagram of the main structure of the carrying fixture of the present invention;

[0032] Figure 5 It is a schematic diagram of the side structure of the carrying fixture of the present invention;

[0033] Figure 6 This is a schematic diagram of the main structure of the load-bearing assembly of the present invention;

[0034] Figure 7 It is a side structural schematic diagram of the bearing assembly of the present invention;

[0035] Figure 8 It is a partial structural schematic diagram of the clamp, the main driving mechanism, the detection mechanism, and the PIN removal mechanism of the present invention after being assembled together and in a first viewing angle;

[0036] Fig. 9 It is a schematic diagram of the partial structure of the clamp, the main driving mechanism, the detection mechanism, and the PIN needle removal mechanism of the present invention after being assembled together and in a second viewing angle.

[0037] Combined with the attached drawings, the following description is given:

[0038] 10——Horizontal working platform 11——Mounting frame

[0039] 12——Slide rail 13——Displacement sensor

[0040] 14——Pressure sensor 20——Fixer

[0041] 21——Base plate 22——Carrying platform

[0042] 220——Bearing pedestal 221——Guide column

[0043] 23——U-shaped block 24——rotating cylinder

[0044] 25——L-shaped clamping block 26——Proximity switch

[0045] 27——Handle 30——Clamp body

[0046] 31——Pull pin 40——Servo motor

[0047] 41——Socket 42——Coupling

[0048] 43——Mounting plate seat 430——Mounting plate

[0049] 431——Mounting block 50——Detection connecting rod

[0050] 500——connecting rod body 501——detection contact foot

[0051] 502——driven part 51——driving cylinder

[0052] 52——sleeve 53——roller

[0053] 54——tension spring 55——photoelectric detection switch

[0054] 60——Clamping cylinder DETAILED DESCRIPTION

[0055] The following describes the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0056] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the art, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0057] Embodiment 1:

[0058] Please refer to the attached Figure 1 To Attachment Figure 3 The figures are respectively a front view structural schematic diagram, a left view structural schematic diagram, and a right view structural schematic diagram of the automatic press-fitting equipment of the present invention.

[0059] The automatic pressing equipment described in the present invention is used to assemble a compression shell and a PCRV valve together, the compression shell has a shell body with a central through hole and a connecting shaft portion integrally connected to one side of the shell body, the PCRV valve has a valve body and a PIN needle connected to the valve body, and a plurality of claws are equidistantly arranged in an annular pattern on the side wall of the valve body. The compression shell and the PCRV valve are automotive parts products well known to technicians in the field of automotive manufacturing, so they will not be described in detail here. The automatic press-fitting equipment described in the present invention comprises a bearing fixture for receiving the compression shell, a fixture for clamping the PCRV valve, a main driving mechanism, a detection mechanism and a PIN needle removal mechanism, wherein the fixture is arranged above the bearing fixture, and the fixture can also be driven by the main driving mechanism to move downward toward the bearing fixture to realize the press-fitting of the PCRV valve onto the compression shell; the detection mechanism has a plurality of detection components, which are distributed around the fixture and are in a one-to-one correspondence with the plurality of claws of the PCRV valve, and when the PCRV valve is press-fitted to After the compression shell is installed, the multiple detection components can also be retracted with each other, that is, the multiple detection components can all move toward the side wall of the valve body of the PCRV valve to detect whether the multiple claws of the PCRV valve are installed in place, that is, when the multiple detection components can respectively touch the multiple claws, it means that the multiple claws are installed in place, otherwise, it means that they are not installed in place; the PIN needle removal mechanism has a clamping component that can clamp the PIN needle, and when the detection mechanism completes the detection work, the clamping component can move back to the supporting fixture to separate the PIN needle from the valve body.

[0060] In this embodiment, preferably, the automatic press-fitting equipment further comprises a horizontal working platform 10 and a mounting frame 11 vertically and positionedly mounted on the upper side of the horizontal working platform 10;

[0061] The bearing fixture is installed on the upper side of the horizontal working platform 10, the main driving mechanism is installed on the mounting frame 11, and the clamp, the detection mechanism and the PIN removal mechanism are respectively connected to the end execution component of the main driving mechanism.

[0062] In this embodiment, preferably, see the attached Figure 4 To Attachment Figure 7As shown, the bearing fixture includes a fixing seat 20, a bearing assembly and two groups of positioning units (the number of positioning units can be changed according to production requirements and is not limited to two groups), wherein the fixing seat 20 is detachably locked and installed on the upper side of the horizontal working platform 10 by bolts, and one side of the fixing seat 20 is also an inclined surface; the bearing assembly has a base plate 21, a bearing platform 22 for placing the shell body and a U-shaped block 23 for placing the connecting shaft, the base plate 21 is detachably locked and installed on the inclined surface by bolts, the bearing platform 22 and the U-shaped block 23 are spaced and fixedly arranged on the On one side of the base plate 21 facing away from the fixing seat 20; each group of the positioning units comprises a rotating cylinder 24 positioned and installed on the fixing seat 20 and an L-shaped clamping block 25 movably installed on one side of the base plate 21 (i.e., the side facing away from the fixing seat 20 mentioned above), and the two L-shaped clamping blocks 25 are relatively arranged on the sides of the supporting platform 22, and one end of the two L-shaped clamping blocks 25 are respectively corresponding to the piston rods of the two rotating cylinders 24 for positioning connection, that is, the two L-shaped clamping blocks 25 can be driven by the two rotating cylinders 24 to press against the shell body placed on the supporting platform 22.

[0063] Further preferably, the bearing platform 22 has a disc-shaped bearing seat 220 that matches the inner cavity of the shell body and is fixedly arranged on one side of the base plate 21, and a guide column 221 that is movably inserted into the central through hole of the shell body and is fixedly arranged on one side of the bearing seat 220;

[0064] In addition, a proximity switch 26 for sensing the compression shell is installed on one side of the base plate 21. The proximity switch 26 can transmit the sensed compression shell incoming material information to the PLC controller. Two handles 27 arranged opposite to each other are fixedly provided on one side of the base plate 21 to facilitate the overall taking of the supporting assembly.

[0065] In this embodiment, preferably, see the attached Figure 8 To Attachment Fig. 9 As shown, the clamp includes a clamp body 30 and a pull pin 31. The clamp body 30 has a receiving cavity for receiving the valve body, and the receiving cavity is also opened on the upper outer wall of the clamp body 30 to form an opening for the PIN needle to extend out. The pull pin 31 is elastically mounted on the clamp body 30, and at the same time, one end of the pull pin 31 is also movably extended in the receiving cavity, so that when the pull pin 31 is pulled out and released in sequence, the pull pin 31 can clamp the valve body and position it in the receiving cavity.

[0066] In addition, the structure that enables the clamp to move downward toward the bearing fixture under the drive of the main driving mechanism is as follows: the main driving mechanism includes a servo motor 40, a screw assembly and a receiving seat 41, wherein the servo motor 40 is positioned and installed on the top side of the mounting frame 11, the screw assembly has a screw extending vertically and movably installed on a vertical side of the mounting frame 11 through a bearing, and a set of nut sleeves arranged outside the screw and threadedly connected to the screw, and the upper shaft end of the screw is also connected through a coupling 42 It is positioned and connected with the power output shaft of the servo motor 40; the receiving seat 41 is slidably installed on a vertical side of the mounting frame 11, and the receiving seat 41 is also positioned and connected with the nut sleeve, in addition, a mounting plate seat 43 is also positioned and connected on the side of the receiving seat 41 facing away from the mounting frame 11, and the mounting plate seat 43 is the end execution component of the main driving mechanism, and a vertical connecting column is positioned and connected on the lower side of the mounting plate seat 43, and the clamp body 30 is positioned and installed on the bottom end of the vertical connecting column.

[0067] Further preferably, a slide rail 12 extending vertically is positioned and laid on one side of the mounting frame 11, and the receiving seat 41 is slidably mounted on the slide rail 12 through a slider;

[0068] In addition, a displacement sensor 13 for sensing the displacement information of the mounting plate seat 43 is positioned on one side of the mounting frame 11, and a pressure sensor 14 is positioned on the upper side of the mounting plate seat 43. In the process of press-fitting the PCRV valve onto the compression shell, the PLC controller can draw a curve (displacement as the horizontal axis and pressure as the vertical axis) based on the data collected by the displacement sensor 13 and the pressure sensor 14, and then when the press-fitting is in place, the PLC controller analyzes and determines the curve result.

[0069] Further preferably, the mounting plate seat 43 has a mounting plate 430 which is placed horizontally and positioned and connected to one side of the receiving seat 41, and a plurality of mounting blocks 431 which are arranged in a ring at the periphery of the lower side of the mounting plate 430, and the plurality of mounting blocks 431 are also in a one-to-one correspondence with the plurality of claws of the PCRV valve;

[0070] The upper end of the vertical connection column is positioned and connected to the middle position of the lower side of the mounting plate 430, and the pressure sensor 14 is positioned and arranged on the upper side of the mounting plate 430; as for the displacement sensor 13, the mounting plate 430 or the mounting block 431 can be the sensing target, which can be set according to production requirements;

[0071] Each of the detection components has a vertically arranged detection link 50, and the upper ends of the multiple detection links 50 are respectively hinged on the multiple mounting blocks 431, and the multiple detection links 50 can also be retracted with each other so that the lower ends of the multiple detection links 50 can move toward the side wall of the valve body of the PCRV valve, thereby detecting whether the multiple claws of the PCRV valve are installed in place.

[0072] Further preferably, each of the detection connecting rods 50 has a connecting rod body 500 in the shape of a vertical rod and a detection contact foot 501, wherein the upper end of the connecting rod body 500 is hinged on the mounting block 431, and the outer wall of the connecting rod body 500 facing away from the vertical connecting column is also concave to form an inclined (downward inclined) pushed portion 502, and the detection contact foot 501 is fixedly connected to the bottom end of the connecting rod body 500;

[0073] In addition, the structure that realizes that the multiple detection connecting rods 50 can also be retracted to each other is: the detection mechanism also includes a pushing component, the pushing component has a driving cylinder 51, a sliding sleeve 52 and a plurality of rollers 53, wherein the driving cylinder 51 is positioned and installed on the upper side of the mounting plate 430, and the piston rod of the driving cylinder 51 points downward, the sliding sleeve 52 is movably sleeved outside the vertical connecting column, and the upper side of the sliding sleeve 52 is also positioned and connected with the piston rod of the driving cylinder 51, that is, the sliding sleeve 52 can be moved up and down and positioned under the drive of the first driving cylinder 51 In addition, a plurality of supports are arranged in a circle on the outer wall of the sliding sleeve 52, and the plurality of rollers 53 are respectively and correspondingly installed on the plurality of supports, and at the same time, the plurality of rollers 53 are also respectively and correspondingly slidably abutted against the plurality of pushed parts 502; when the driving cylinder 51 drives the sliding sleeve 52 and the plurality of rollers 53 to move downward, the plurality of rollers 53 can push the plurality of detection connecting rods 50 to retract with each other, and conversely, when the driving cylinder 51 drives the sliding sleeve 52 and the plurality of rollers 53 to move upward, the plurality of detection connecting rods 50 can open and reset.

[0074] Further preferably, each of the connecting rod bodies 500 is connected to the outer side wall of the sliding sleeve 52 via a tension spring 54 to ensure that the detection connecting rod 50 can be effectively reset;

[0075] In addition, a photoelectric detection switch 55 for sensing the displacement information of the detection link 50 is positioned and installed on each of the mounting blocks 431. The photoelectric detection switch 55 is electrically connected to the PLC controller so that the PLC controller can analyze and judge the movement of the plurality of detection links 50 to avoid the problem of inadequate detection due to failure of some pushing components or detection components.

[0076] In this embodiment, preferably, the clamping assembly has a clamping cylinder 60 positioned and installed on the clamp body 30 and a clamping claw positioned and connected to the piston rod of the clamping cylinder 60, and the clamping claw can clamp the PIN needle under the drive of the clamping cylinder 60; in addition, an avoidance hole groove for avoiding the work of the clamping claw is also opened on the sliding sleeve 52, which belongs to common knowledge and is not described in detail here;

[0077] In addition, the PIN removal mechanism also has a waste recovery container disposed on the horizontal working platform 10 and used to recover PINs.

[0078] The present invention also provides a processing method of the automatic press-fitting equipment, which is:

[0079] Step 1), first use a barcode scanner to scan the QR code information of the PCRV valve and transmit it to the PLC controller; then the operator pulls out the pull pin 31, puts the valve body of the PCRV valve into the receiving cavity (the PIN needle extends out of the receiving cavity), and releases the pull pin 31 in sequence, so that the valve body can be clamped and positioned in the receiving cavity; then, the PLC controller controls the clamping cylinder 60 to move so that the clamping claw clamps the PIN needle;

[0080] Step 2), first use a barcode scanner to scan the QR code information of the compression shell and transmit it to the PLC controller; then the operator places the shell body of the compression shell on the bearing pedestal 220, and places the connecting shaft of the compression shell in the U-shaped block 23, and then the PLC controller controls the two rotating cylinders 24 to work, so that the two L-shaped clamping blocks 25 press the shell body; at the same time, the proximity switch 26 also transmits the sensed incoming information of the compression shell to the PLC controller;

[0081] Supplementary explanation: During the production process, the processing order of step 1) and step 2) can be switched;

[0082] Step 3), the PLC controller controls the servo motor 40 to rotate in the forward direction, and after transmitting power through the screw assembly, the receiving seat 41, and the mounting plate seat 43, drives the fixture to move downward toward the bearing fixture to press the PCRV valve onto the compression shell;

[0083] In addition, in the process of press-fitting the PCRV valve onto the compression shell, the PLC controller can also draw a curve (displacement as the horizontal coordinate and pressure as the vertical coordinate) based on the data collected by the displacement sensor 13 and the pressure sensor 14, so that when the valve is press-fitted into place, the PLC controller can analyze and judge the curve result;

[0084] Step 4), after being pressed into place, the PLC controller controls the driving cylinder 51 to work, that is, the driving cylinder 51 drives the sliding sleeve 52 and the plurality of rollers 53 to move downward, at which time, the plurality of rollers 53 can push the plurality of detection connecting rods 50 to retract each other, and then if the plurality of detection contact feet 501 can respectively touch the plurality of claws, it means that the plurality of claws are installed in place, otherwise, it means that they are not installed in place; after the detection is completed, the PLC controller controls the driving cylinder 51 to reset, and correspondingly, the plurality of detection connecting rods 50 can be opened and reset;

[0085] In addition, during the mutual retraction and opening and resetting process of the above-mentioned multiple detection links 50, the multiple photoelectric detection switches 55 also transmit the displacement information of the sensed detection links 50 to the PLC controller, so that the PLC controller can analyze and judge the movement of the multiple detection links 50 to avoid the problem of inadequate detection due to failure of the pushing component or the detection component;

[0086] Step 5), the PLC controller controls the servo motor 40 to rotate in the opposite direction, so as to drive the clamp, the detection mechanism and the PIN needle removal mechanism to move upward, and then the clamping assembly will pull out the PIN needle, so that the PIN needle is separated from the valve body; then, the PLC controller also controls the clamping cylinder 60 to reset, and the PIN needle falls into the waste recovery container;

[0087] Step 6), the PLC controller controls the two rotating cylinders 24 to reset, so that the two L-shaped clamping blocks 25 loosen the shell body, and the operator takes out the pressed shell PCRV valve assembly; the processing is completed.

[0088] In summary, compared with the prior art, the automatic press-fitting equipment described in the present invention combines "automatic mechanical press-fitting technology", "mechanical detection technology", and "electronic detection technology", which not only greatly improves the intelligent, convenient, precise and stable control level of the press-fitting equipment, but also realizes the accurate and reliable press-fitting of the compression shell and the PCRV valve together, thus ensuring the product quality. In addition, the automatic press-fitting equipment saves both time and manpower in actual production, and can be widely promoted in labor-intensive enterprises.

[0089] The above-mentioned embodiments are only illustrative of the effects of the present invention and are not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An automatic press-fitting device, which is used to assemble a compression shell and a PCRV valve together, wherein the compression shell has a shell body with a central through hole and a connecting shaft integrally connected to one side of the shell body, and the PCRV valve has a valve body and a PIN needle connected to the valve body, and a plurality of claws are arranged in a circle on the side wall of the valve body; characterized in that: The automatic press-fitting equipment comprises a bearing fixture for receiving the compression shell, a fixture for clamping the PCRV valve, a main driving mechanism, a detection mechanism and a PIN removal mechanism, wherein the fixture is arranged above the bearing fixture, and the fixture can also be driven by the main driving mechanism to press and move toward the bearing fixture to realize press-fitting the PCRV valve onto the compression shell; The detection mechanism has a plurality of detection components, which are distributed around the fixture and correspond to the plurality of claws of the PCRV valve in a one-to-one relationship. When the PCRV valve is pressed onto the compression shell, the plurality of detection components can also be retracted, that is, the plurality of detection components can all move toward the side wall of the valve body of the PCRV valve, so as to detect whether the plurality of claws of the PCRV valve are installed in place. The PIN needle removal mechanism has a clamping assembly capable of clamping the PIN needle. When the detection mechanism completes the detection work, the clamping assembly can move away from the supporting fixture to separate the PIN needle from the valve body.

2. The automatic press-fitting equipment according to claim 1, characterized in that: The automatic press-fitting equipment also includes a horizontal working platform (10) and a mounting frame (11) vertically and positionally mounted on the upper side of the horizontal working platform (10); The bearing fixture is mounted on the upper side of the horizontal working platform (10), the main driving mechanism is mounted on the mounting frame (11), and the clamp, the detection mechanism and the PIN removal mechanism are respectively connected to the end execution component of the main driving mechanism.

3. The automatic press-fitting equipment according to claim 2, characterized in that: The bearing fixture comprises a fixing seat (20), a bearing assembly and two sets of positioning units, wherein the fixing seat (20) is detachably locked and installed on the upper side of the horizontal working platform (10), and one side of the fixing seat (20) is also an inclined surface; the bearing assembly comprises a base plate (21), a bearing platform (22) for placing the shell body and a U-shaped block (23) for placing the connecting shaft, the base plate (21) is detachably locked and installed on the inclined surface, the bearing platform (22) and the U-shaped block (23) are spaced and fixedly arranged on the base plate (21) away from the fixing seat (20); each group of the positioning units comprises a rotating cylinder (24) positioned on the fixed seat (20) and an L-shaped clamping block (25) movably mounted on a side of the base plate (21); the two L-shaped clamping blocks (25) are relatively arranged on the sides of the supporting platform (22), and one end of the two L-shaped clamping blocks (25) is respectively corresponding to the piston rods of the two rotating cylinders (24) for positioning connection, that is, the two L-shaped clamping blocks (25) can be driven by the two rotating cylinders (24) to press against the shell body placed on the supporting platform (22).

4. The automatic press-fitting equipment according to claim 3, characterized in that: The bearing platform (22) comprises a bearing seat (220) matched with the inner cavity of the shell body and fixedly arranged on a side surface of the base plate (21), and a guide column (221) for movably passing through the central through hole of the shell body and fixedly arranged on a side surface of the bearing seat (220); In addition, a proximity switch (26) for sensing the pressure shell is installed on one side of the base plate (21), and two handles (27) arranged opposite to each other are fixedly provided on one side of the base plate (21).

5. The automatic press-fitting equipment according to claim 2, characterized in that: The clamp comprises a clamp body (30) and a pull pin (31), the clamp body (30) having a receiving cavity for receiving the valve body, and the receiving cavity is also opened on the upper outer wall of the clamp body (30) to form an opening for the PIN needle to extend out, the pull pin (31) is elastically mounted on the clamp body (30), and at the same time, one end of the pull pin (31) is also movably extended into the receiving cavity, so that when the pull pin (31) is pulled out and released in sequence, the pull pin (31) can clamp the valve body and position it in the receiving cavity; In addition, the structure for realizing that the clamp can also be driven by the main driving mechanism to move downward toward the supporting fixture is as follows: the main driving mechanism includes a servo motor (40), a screw assembly and a receiving seat (41), wherein the servo motor (40) is positioned and installed on the top side of the mounting frame (11), the screw assembly has a screw extending vertically and movably installed on a vertical side of the mounting frame (11), and a set of nut sleeves arranged outside the screw and threadedly connected to the screw, and the upper shaft end of the screw is also connected to the servo motor through a coupling (42). The power output shaft of the machine (40) is positioned and connected; the receiving seat (41) is slidably installed on a vertical side of the mounting frame (11), and the receiving seat (41) is also positioned and connected with the nut sleeve. In addition, a mounting plate seat (43) is also positioned and connected on the side of the receiving seat (41) facing away from the mounting frame (11), and the mounting plate seat (43) is the end execution component of the main driving mechanism. A vertical connecting column is positioned and connected on the lower side of the mounting plate seat (43), and the clamp body (30) is positioned and installed on the bottom end of the vertical connecting column.

6. The automatic press-fitting equipment according to claim 5, characterized in that: A slide rail (12) extending vertically is positioned and laid on one side of the mounting frame (11), and the receiving seat (41) is slidably mounted on the slide rail (12) via a sliding block; In addition, a displacement sensor (13) for sensing displacement information of the mounting plate seat (43) is positioned on one vertical side of the mounting frame (11), and a pressure sensor (14) is positioned on the upper side of the mounting plate seat (43).

7. The automatic press-fitting equipment according to claim 6, characterized in that: The mounting plate seat (43) comprises a mounting plate (430) which is placed transversely and positioned to be connected to one side of the receiving seat (41), and a plurality of mounting blocks (431) which are arranged in a ring at the periphery of the lower side of the mounting plate (430), and the plurality of mounting blocks (431) are in a one-to-one correspondence with the plurality of claws of the PCRV valve; The upper end of the vertical connection column is positioned and connected to the middle position of the lower side of the mounting plate (430), and the pressure sensor (14) is positioned and arranged on the upper side of the mounting plate (430); Each of the detection components has a vertically arranged detection link (50), and the upper ends of the multiple detection links (50) are respectively hinged to the multiple mounting blocks (431), and the multiple detection links (50) can also be retracted to each other so that the lower ends of the multiple detection links (50) can move toward the side wall of the valve body of the PCRV valve, thereby detecting whether the multiple claws of the PCRV valve are installed in place.

8. The automatic press-fitting equipment according to claim 7, characterized in that: Each of the detection connecting rods (50) comprises a connecting rod body (500) in the shape of a vertical rod and a detection contact foot (501), wherein the upper end of the connecting rod body (500) is hinged on the mounting block (431), and the outer wall of the connecting rod body (500) facing away from the vertical connecting column is concave to form an inclined pushed portion (502), and the detection contact foot (501) is fixedly connected to the bottom end of the connecting rod body (500); In addition, the structure for realizing that the plurality of detection connecting rods (50) can be retracted to each other is as follows: the detection mechanism also includes a pushing assembly, the pushing assembly having a driving cylinder (51), a sliding sleeve (52) and a plurality of rollers (53), wherein the driving cylinder (51) is positioned and installed on the upper side of the mounting plate (430), and the piston rod of the driving cylinder (51) points downward, the sliding sleeve (52) is movably sleeved outside the vertical connecting column, and the upper side of the sliding sleeve (52) is also positioned and connected to the piston rod of the driving cylinder (51), and a ring is also formed on the outer side wall of the sliding sleeve (52). A plurality of supports are arranged in a row, and the plurality of rollers (53) are respectively and correspondingly mounted on the plurality of supports in a rotational manner, and at the same time, the plurality of rollers (53) are also respectively and correspondingly slidably abutted against the plurality of pushed parts (502); when the driving cylinder (51) drives the sliding sleeve (52) and the plurality of rollers (53) to move downward, the plurality of rollers (53) can push the plurality of detection connecting rods (50) to retract with each other; conversely, when the driving cylinder (51) drives the sliding sleeve (52) and the plurality of rollers (53) to move upward, the plurality of detection connecting rods (50) can open and reset.

9. The automatic press-fitting equipment according to claim 8, characterized in that: Each of the connecting rod bodies (500) is connected to the outer side wall of the sliding sleeve (52) via a tension spring (54); In addition, a photoelectric detection switch (55) for sensing displacement information of the detection connecting rod (50) is also positioned and installed on each of the mounting blocks (431).

10. The automatic press-fitting equipment according to claim 5, characterized in that: The clamping assembly comprises a clamping cylinder (60) positioned and mounted on the clamp body (30) and a clamping claw positioned and connected to the piston rod of the clamping cylinder (60), and the clamping claw can clamp the PIN needle under the drive of the clamping cylinder (60); In addition, the PIN needle removal mechanism also has a waste material recovery container which is arranged on the horizontal working platform (10) and is used to recover the PIN needles.

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